How To Resolve This Attribute Error

AttributeError: ‘anesticu.iv_fluids’ Model has no attribute ‘value_of_iv_fluids’: {‘iv_fluids_names’: Pool().get(‘anesticu.iv_fluid_list’)(15)}
I need to show the list of iv fluids in tree view, using one to many. But this above mentioned error is coming , even i have droped the table then too it is showing up again and again.

Any help regarding this will be appreciable.

Such error happens when you try to access an attribute of a Model that is not declared or if you try to access a field from a on_change method that is missing the declaration of this field in fields.depends.
It is difficult to be more precise with so few information.